EP 0371449 B1 19960529 - Pattern selecting device capable of selecting favorable candidate patterns
Title (en)
Pattern selecting device capable of selecting favorable candidate patterns
Title (de)
Musterauswahlvorrichtung mit günstiger Kandidatmusterauswahlfähigkeit
Title (fr)
Dispositif de sélection de modèles capable de sélecter des modèles candidats favorables
Publication
Application
Priority
JP 29943488 A 19881129
Abstract (en)
[origin: EP0371449A2] In a pattern selecting device for use in combination with a pattern collating device for collating an input pattern with a plurality of registered patterns to produce first through N-th candidate pattern signals indicative of first through N-th candidate patterns which have first through N-th candidate degrees of similarity relative to the input pattern, where N represents an integer which is not less than two and is not greater than the number of the registered patterns, a processing unit processes (n+1)-th through the N-th candidate pattern signals and produces an approximation signal representative of an approximation variable related to (n+1)-th through the N-th candidate degrees, where n is variable from 1 towards N. An estimating unit estimates an n-th estimated degree for an n-th candidate pattern with reference to the approximation variable to produce an estimated signal representative of the n-th estimated degree. A deciding unit decides whether or not a ratio of the n-th estimated degree to the n-th candidate degree is not smaller than a predetermined value and produces an output numeral representative of n-th candidate pattern when the ratio is not smaller than the predetermined value. Instead of the ratio, it is possible to use a weighted mean value of the n-th candidate degree and the ratio of the n-th estimated degree to the n-th candidate degree.
IPC 1-7
IPC 8 full level
G06T 7/00 (2006.01); G06V 10/75 (2022.01)
CPC (source: EP US)
G06V 10/75 (2022.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0371449 A2 19900606; EP 0371449 A3 19921119; EP 0371449 B1 19960529; DE 68926566 D1 19960704; DE 68926566 T2 19960926; JP 2710062 B2 19980210; JP H02146684 A 19900605; US 4956870 A 19900911
DOCDB simple family (application)
EP 89121910 A 19891128; DE 68926566 T 19891128; JP 29943488 A 19881129; US 44228189 A 19891128